tests/examples/gl/generic/cube/main.cpp - mtk-gst-plugins-bad-debian - Git at Google

 /*
  * GStreamer
  * Copyright (C) 2008-2009 Julien Isorce <julien.isorce@gmail.com>
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
  * License as published by the Free Software Foundation; either
  * version 2 of the License, or (at your option) any later version.
  *
  * This library is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  * Library General Public License for more details.
  *
  * You should have received a copy of the GNU Library General Public
  * License along with this library; if not, write to the
  * Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
  * Boston, MA 02110-1301, USA.
  */

 #include <gst/gst.h>
 #include <gst/gl/gl.h>

 #include <iostream>
 #include <string>

 static gboolean bus_call (GstBus *bus, GstMessage *msg, gpointer data)
 {
     GMainLoop *loop = (GMainLoop*)data;

     switch (GST_MESSAGE_TYPE (msg))
     {
         case GST_MESSAGE_EOS:
               g_print ("End-of-stream\n");
               g_main_loop_quit (loop);
               break;
         case GST_MESSAGE_ERROR:
           {
               gchar *debug = NULL;
               GError *err = NULL;

               gst_message_parse_error (msg, &err, &debug);

               g_print ("Error: %s\n", err->message);
               g_error_free (err);

               if (debug)
               {
                   g_print ("Debug deails: %s\n", debug);
                   g_free (debug);
               }

               g_main_loop_quit (loop);
               break;
           }
         default:
           break;
     }

     return TRUE;
 }

 //client reshape callback
 static gboolean reshapeCallback (void *gl_sink, void *context, GLuint width, GLuint height, gpointer data)
 {
     glViewport(0, 0, width, height);
     glMatrixMode(GL_PROJECTION);
     glLoadIdentity();
     glMatrixMode(GL_MODELVIEW);

     return TRUE;
 }

 //client draw callback
 static gboolean drawCallback (GstElement * gl_sink, GstGLContext *context, GstSample * sample, gpointer data)
 {
     static GLfloat	xrot = 0;
     static GLfloat	yrot = 0;
     static GLfloat	zrot = 0;
     static GTimeVal current_time;
     static glong last_sec = current_time.tv_sec;
     static gint nbFrames = 0;

     GstVideoFrame v_frame;
     GstVideoInfo v_info;
     guint texture = 0;
     GstBuffer *buf = gst_sample_get_buffer (sample);
     GstCaps *caps = gst_sample_get_caps (sample);

     gst_video_info_from_caps (&v_info, caps);

     if (!gst_video_frame_map (&v_frame, &v_info, buf, (GstMapFlags) (GST_MAP_READ | GST_MAP_GL))) {
       g_warning ("Failed to map the video buffer");
       return TRUE;
     }

     texture = *(guint *) v_frame.data[0];

     g_get_current_time (&current_time);
     nbFrames++ ;

     if ((current_time.tv_sec - last_sec) >= 1)
     {
         std::cout << "GRPHIC FPS = " << nbFrames << std::endl;
         nbFrames = 0;
         last_sec = current_time.tv_sec;
     }

     glEnable(GL_DEPTH_TEST);

     glEnable (GL_TEXTURE_2D);
     glBindTexture (GL_TEXTURE_2D, texture);
     glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
     glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
     glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
     glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
     glTexEnvi (GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE);

     glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
     glMatrixMode(GL_MODELVIEW);
     glLoadIdentity();

     /* invert the y-axis to get the front face the correct way up */
     glScalef (0.5f, -0.5f, 0.5f);

     glRotatef(xrot,1.0f,0.0f,0.0f);
     glRotatef(yrot,0.0f,1.0f,0.0f);
     glRotatef(zrot,0.0f,0.0f,1.0f);

     glBegin(GL_QUADS);
 	      // Front Face
 	      glTexCoord2f(1.0f, 0.0f); glVertex3f(-1.0f, -1.0f,  1.0f);
 	      glTexCoord2f(0.0f, 0.0f); glVertex3f( 1.0f, -1.0f,  1.0f);
 	      glTexCoord2f(0.0f, 1.0f); glVertex3f( 1.0f,  1.0f,  1.0f);
 	      glTexCoord2f(1.0f, 1.0f); glVertex3f(-1.0f,  1.0f,  1.0f);
 	      // Back Face
 	      glTexCoord2f(0.0f, 0.0f); glVertex3f(-1.0f, -1.0f, -1.0f);
 	      glTexCoord2f(0.0f, 1.0f); glVertex3f(-1.0f,  1.0f, -1.0f);
 	      glTexCoord2f(1.0f, 1.0f); glVertex3f( 1.0f,  1.0f, -1.0f);
 	      glTexCoord2f(1.0f, 0.0f); glVertex3f( 1.0f, -1.0f, -1.0f);
 	      // Top Face
 	      glTexCoord2f(1.0f, 1.0f); glVertex3f(-1.0f,  1.0f, -1.0f);
 	      glTexCoord2f(1.0f, 0.0f); glVertex3f(-1.0f,  1.0f,  1.0f);
 	      glTexCoord2f(0.0f, 0.0f); glVertex3f( 1.0f,  1.0f,  1.0f);
 	      glTexCoord2f(0.0f, 1.0f); glVertex3f( 1.0f,  1.0f, -1.0f);
 	      // Bottom Face
 	      glTexCoord2f(1.0f, 0.0f); glVertex3f(-1.0f, -1.0f, -1.0f);
 	      glTexCoord2f(0.0f, 0.0f); glVertex3f( 1.0f, -1.0f, -1.0f);
 	      glTexCoord2f(0.0f, 1.0f); glVertex3f( 1.0f, -1.0f,  1.0f);
 	      glTexCoord2f(1.0f, 1.0f); glVertex3f(-1.0f, -1.0f,  1.0f);
 	      // Right face
 	      glTexCoord2f(0.0f, 0.0f); glVertex3f( 1.0f, -1.0f, -1.0f);
 	      glTexCoord2f(0.0f, 1.0f); glVertex3f( 1.0f,  1.0f, -1.0f);
 	      glTexCoord2f(1.0f, 1.0f); glVertex3f( 1.0f,  1.0f,  1.0f);
 	      glTexCoord2f(1.0f, 0.0f); glVertex3f( 1.0f, -1.0f,  1.0f);
 	      // Left Face
 	      glTexCoord2f(1.0f, 0.0f); glVertex3f(-1.0f, -1.0f, -1.0f);
 	      glTexCoord2f(0.0f, 0.0f); glVertex3f(-1.0f, -1.0f,  1.0f);
 	      glTexCoord2f(0.0f, 1.0f); glVertex3f(-1.0f,  1.0f,  1.0f);
 	      glTexCoord2f(1.0f, 1.0f); glVertex3f(-1.0f,  1.0f, -1.0f);
     glEnd();

     gst_video_frame_unmap (&v_frame);

     xrot+=0.3f;
     yrot+=0.2f;
     zrot+=0.4f;

     glDisable (GL_DEPTH_TEST);
     glDisable (GL_TEXTURE_2D);

     return TRUE;
 }


 //gst-launch-1.0 videotestsrc num_buffers=400 ! video/x-raw, width=320, height=240 !
 //glgraphicmaker ! glfiltercube ! video/x-raw, width=800, height=600 ! glimagesink
 gint main (gint argc, gchar *argv[])
 {
     GstStateChangeReturn ret;
     GstElement *pipeline, *videosrc, *glimagesink;

     GMainLoop *loop;
     GstBus *bus;

     /* FIXME: remove once the example supports gl3 and/or gles2 */
     g_setenv ("GST_GL_API", "opengl", FALSE);

     /* initialization */
     gst_init (&argc, &argv);
     loop = g_main_loop_new (NULL, FALSE);

     /* create elements */
     pipeline = gst_pipeline_new ("pipeline");

     /* watch for messages on the pipeline's bus (note that this will only
      * work like this when a GLib main loop is running) */
     bus = gst_pipeline_get_bus (GST_PIPELINE (pipeline));
     gst_bus_add_watch (bus, bus_call, loop);
     gst_object_unref (bus);

     /* create elements */
     videosrc = gst_element_factory_make ("videotestsrc", "videotestsrc0");
     glimagesink  = gst_element_factory_make ("glimagesink", "glimagesink0");


     if (!videosrc || !glimagesink)
     {
         g_print ("one element could not be found \n");
         return -1;
     }

     /* change video source caps */
     GstCaps *caps = gst_caps_new_simple("video/x-raw",
                                         "format", G_TYPE_STRING, "RGB",
                                         "width", G_TYPE_INT, 320,
                                         "height", G_TYPE_INT, 240,
                                         "framerate", GST_TYPE_FRACTION, 25, 1,
                                         NULL) ;

     /* configure elements */
     g_object_set(G_OBJECT(videosrc), "num-buffers", 400, NULL);
     g_signal_connect(G_OBJECT(glimagesink), "client-reshape", G_CALLBACK (reshapeCallback), NULL);
     g_signal_connect(G_OBJECT(glimagesink), "client-draw", G_CALLBACK (drawCallback), NULL);

     /* add elements */
     gst_bin_add_many (GST_BIN (pipeline), videosrc, glimagesink, NULL);

     /* link elements */
     gboolean link_ok = gst_element_link_filtered(videosrc, glimagesink, caps) ;
     gst_caps_unref(caps) ;
     if(!link_ok)
     {
         g_warning("Failed to link videosrc to glimagesink!\n") ;
         return -1 ;
     }

     /* run */
     ret = gst_element_set_state (pipeline, GST_STATE_PLAYING);
     if (ret == GST_STATE_CHANGE_FAILURE)
     {
         g_print ("Failed to start up pipeline!\n");

         /* check if there is an error message with details on the bus */
         GstMessage* msg = gst_bus_poll (bus, GST_MESSAGE_ERROR, 0);
         if (msg)
         {
           GError *err = NULL;

           gst_message_parse_error (msg, &err, NULL);
           g_print ("ERROR: %s\n", err->message);
           g_error_free (err);
           gst_message_unref (msg);
         }
         return -1;
     }

     g_main_loop_run (loop);

     /* clean up */
     gst_element_set_state (pipeline, GST_STATE_NULL);
     gst_object_unref (pipeline);

     return 0;
 }
	/*
	* GStreamer
	* Copyright (C) 2008-2009 Julien Isorce <julien.isorce@gmail.com>
	*
	* This library is free software; you can redistribute it and/or
	* modify it under the terms of the GNU Library General Public
	* License as published by the Free Software Foundation; either
	* version 2 of the License, or (at your option) any later version.
	*
	* This library is distributed in the hope that it will be useful,
	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
	* Library General Public License for more details.
	*
	* You should have received a copy of the GNU Library General Public
	* License along with this library; if not, write to the
	* Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
	* Boston, MA 02110-1301, USA.
	*/

	#include <gst/gst.h>
	#include <gst/gl/gl.h>

	#include <iostream>
	#include <string>

	static gboolean bus_call (GstBus bus, GstMessage msg, gpointer data)
	{
	GMainLoop loop = (GMainLoop)data;

	switch (GST_MESSAGE_TYPE (msg))
	{
	case GST_MESSAGE_EOS:
	g_print ("End-of-stream\n");
	g_main_loop_quit (loop);
	break;
	case GST_MESSAGE_ERROR:
	{
	gchar *debug = NULL;
	GError *err = NULL;

	gst_message_parse_error (msg, &err, &debug);

	g_print ("Error: %s\n", err->message);
	g_error_free (err);

	if (debug)
	{
	g_print ("Debug deails: %s\n", debug);
	g_free (debug);
	}

	g_main_loop_quit (loop);
	break;
	}
	default:
	break;
	}

	return TRUE;
	}

	//client reshape callback
	static gboolean reshapeCallback (void gl_sink, void context, GLuint width, GLuint height, gpointer data)
	{
	glViewport(0, 0, width, height);
	glMatrixMode(GL_PROJECTION);
	glLoadIdentity();
	glMatrixMode(GL_MODELVIEW);

	return TRUE;
	}

	//client draw callback
	static gboolean drawCallback (GstElement * gl_sink, GstGLContext context, GstSample sample, gpointer data)
	{
	static GLfloat xrot = 0;
	static GLfloat yrot = 0;
	static GLfloat zrot = 0;
	static GTimeVal current_time;
	static glong last_sec = current_time.tv_sec;
	static gint nbFrames = 0;

	GstVideoFrame v_frame;
	GstVideoInfo v_info;
	guint texture = 0;
	GstBuffer *buf = gst_sample_get_buffer (sample);
	GstCaps *caps = gst_sample_get_caps (sample);

	gst_video_info_from_caps (&v_info, caps);

	if (!gst_video_frame_map (&v_frame, &v_info, buf, (GstMapFlags) (GST_MAP_READ \| GST_MAP_GL))) {
	g_warning ("Failed to map the video buffer");
	return TRUE;
	}

	texture = (guint ) v_frame.data[0];

	g_get_current_time (&current_time);
	nbFrames++ ;

	if ((current_time.tv_sec - last_sec) >= 1)
	{
	std::cout << "GRPHIC FPS = " << nbFrames << std::endl;
	nbFrames = 0;
	last_sec = current_time.tv_sec;
	}

	glEnable(GL_DEPTH_TEST);

	glEnable (GL_TEXTURE_2D);
	glBindTexture (GL_TEXTURE_2D, texture);
	glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MAG_FILTER, GL_LINEAR);
	glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_MIN_FILTER, GL_LINEAR);
	glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_WRAP_S, GL_CLAMP_TO_EDGE);
	glTexParameteri (GL_TEXTURE_2D, GL_TEXTURE_WRAP_T, GL_CLAMP_TO_EDGE);
	glTexEnvi (GL_TEXTURE_ENV, GL_TEXTURE_ENV_MODE, GL_REPLACE);

	glClear(GL_COLOR_BUFFER_BIT \| GL_DEPTH_BUFFER_BIT);
	glMatrixMode(GL_MODELVIEW);
	glLoadIdentity();

	/* invert the y-axis to get the front face the correct way up */
	glScalef (0.5f, -0.5f, 0.5f);

	glRotatef(xrot,1.0f,0.0f,0.0f);
	glRotatef(yrot,0.0f,1.0f,0.0f);
	glRotatef(zrot,0.0f,0.0f,1.0f);

	glBegin(GL_QUADS);
	// Front Face
	glTexCoord2f(1.0f, 0.0f); glVertex3f(-1.0f, -1.0f, 1.0f);
	glTexCoord2f(0.0f, 0.0f); glVertex3f( 1.0f, -1.0f, 1.0f);
	glTexCoord2f(0.0f, 1.0f); glVertex3f( 1.0f, 1.0f, 1.0f);
	glTexCoord2f(1.0f, 1.0f); glVertex3f(-1.0f, 1.0f, 1.0f);
	// Back Face
	glTexCoord2f(0.0f, 0.0f); glVertex3f(-1.0f, -1.0f, -1.0f);
	glTexCoord2f(0.0f, 1.0f); glVertex3f(-1.0f, 1.0f, -1.0f);
	glTexCoord2f(1.0f, 1.0f); glVertex3f( 1.0f, 1.0f, -1.0f);
	glTexCoord2f(1.0f, 0.0f); glVertex3f( 1.0f, -1.0f, -1.0f);
	// Top Face
	glTexCoord2f(1.0f, 1.0f); glVertex3f(-1.0f, 1.0f, -1.0f);
	glTexCoord2f(1.0f, 0.0f); glVertex3f(-1.0f, 1.0f, 1.0f);
	glTexCoord2f(0.0f, 0.0f); glVertex3f( 1.0f, 1.0f, 1.0f);
	glTexCoord2f(0.0f, 1.0f); glVertex3f( 1.0f, 1.0f, -1.0f);
	// Bottom Face
	glTexCoord2f(1.0f, 0.0f); glVertex3f(-1.0f, -1.0f, -1.0f);
	glTexCoord2f(0.0f, 0.0f); glVertex3f( 1.0f, -1.0f, -1.0f);
	glTexCoord2f(0.0f, 1.0f); glVertex3f( 1.0f, -1.0f, 1.0f);
	glTexCoord2f(1.0f, 1.0f); glVertex3f(-1.0f, -1.0f, 1.0f);
	// Right face
	glTexCoord2f(0.0f, 0.0f); glVertex3f( 1.0f, -1.0f, -1.0f);
	glTexCoord2f(0.0f, 1.0f); glVertex3f( 1.0f, 1.0f, -1.0f);
	glTexCoord2f(1.0f, 1.0f); glVertex3f( 1.0f, 1.0f, 1.0f);
	glTexCoord2f(1.0f, 0.0f); glVertex3f( 1.0f, -1.0f, 1.0f);
	// Left Face
	glTexCoord2f(1.0f, 0.0f); glVertex3f(-1.0f, -1.0f, -1.0f);
	glTexCoord2f(0.0f, 0.0f); glVertex3f(-1.0f, -1.0f, 1.0f);
	glTexCoord2f(0.0f, 1.0f); glVertex3f(-1.0f, 1.0f, 1.0f);
	glTexCoord2f(1.0f, 1.0f); glVertex3f(-1.0f, 1.0f, -1.0f);
	glEnd();

	gst_video_frame_unmap (&v_frame);

	xrot+=0.3f;
	yrot+=0.2f;
	zrot+=0.4f;

	glDisable (GL_DEPTH_TEST);
	glDisable (GL_TEXTURE_2D);

	return TRUE;
	}


	//gst-launch-1.0 videotestsrc num_buffers=400 ! video/x-raw, width=320, height=240 !
	//glgraphicmaker ! glfiltercube ! video/x-raw, width=800, height=600 ! glimagesink
	gint main (gint argc, gchar *argv[])
	{
	GstStateChangeReturn ret;
	GstElement pipeline, videosrc, *glimagesink;

	GMainLoop *loop;
	GstBus *bus;

	/* FIXME: remove once the example supports gl3 and/or gles2 */
	g_setenv ("GST_GL_API", "opengl", FALSE);

	/* initialization */
	gst_init (&argc, &argv);
	loop = g_main_loop_new (NULL, FALSE);

	/* create elements */
	pipeline = gst_pipeline_new ("pipeline");

	/* watch for messages on the pipeline's bus (note that this will only
	* work like this when a GLib main loop is running) */
	bus = gst_pipeline_get_bus (GST_PIPELINE (pipeline));
	gst_bus_add_watch (bus, bus_call, loop);
	gst_object_unref (bus);

	/* create elements */
	videosrc = gst_element_factory_make ("videotestsrc", "videotestsrc0");
	glimagesink = gst_element_factory_make ("glimagesink", "glimagesink0");


	if (!videosrc \|\| !glimagesink)
	{
	g_print ("one element could not be found \n");
	return -1;
	}

	/* change video source caps */
	GstCaps *caps = gst_caps_new_simple("video/x-raw",
	"format", G_TYPE_STRING, "RGB",
	"width", G_TYPE_INT, 320,
	"height", G_TYPE_INT, 240,
	"framerate", GST_TYPE_FRACTION, 25, 1,
	NULL) ;

	/* configure elements */
	g_object_set(G_OBJECT(videosrc), "num-buffers", 400, NULL);
	g_signal_connect(G_OBJECT(glimagesink), "client-reshape", G_CALLBACK (reshapeCallback), NULL);
	g_signal_connect(G_OBJECT(glimagesink), "client-draw", G_CALLBACK (drawCallback), NULL);

	/* add elements */
	gst_bin_add_many (GST_BIN (pipeline), videosrc, glimagesink, NULL);

	/* link elements */
	gboolean link_ok = gst_element_link_filtered(videosrc, glimagesink, caps) ;
	gst_caps_unref(caps) ;
	if(!link_ok)
	{
	g_warning("Failed to link videosrc to glimagesink!\n") ;
	return -1 ;
	}

	/* run */
	ret = gst_element_set_state (pipeline, GST_STATE_PLAYING);
	if (ret == GST_STATE_CHANGE_FAILURE)
	{
	g_print ("Failed to start up pipeline!\n");

	/* check if there is an error message with details on the bus */
	GstMessage* msg = gst_bus_poll (bus, GST_MESSAGE_ERROR, 0);
	if (msg)
	{
	GError *err = NULL;

	gst_message_parse_error (msg, &err, NULL);
	g_print ("ERROR: %s\n", err->message);
	g_error_free (err);
	gst_message_unref (msg);
	}
	return -1;
	}

	g_main_loop_run (loop);

	/* clean up */
	gst_element_set_state (pipeline, GST_STATE_NULL);
	gst_object_unref (pipeline);

	return 0;
	}